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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: finding no. of solutions
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[Post New]7 Apr 2008 19:11:05 IST
    Subject: finding no. of solutions
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dave (21)

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hey guys can u explain me hw to find no. of solutions to a given quadratic equation

take this question for example

  3sinx + cosx - (y-1)2 =0         , 0  x 2
    find no. of values of pair(x,y).

    oh and please mention a general method which mayb followed fr such problems...i cud find none in  k.c sinha.
    
[Post New]7 Apr 2008 19:22:45 IST
    Subject: Re:finding no. of solutions
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Conjurer (615)

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sin(x + pi/3) = (y-1)^2/2

Now draw the graphs of y = sin(x + pi/3) and x = (y-1)^/2 and see the points of intersection. Thats the usual method.

Is the answer 1?
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[Post New]7 Apr 2008 21:48:24 IST
    Subject: finding no. of solutions
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sourab_MCA (19)

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i dont think this is a quadratic eq.
preparing for CAT 2008
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